/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jpxx.workflow.rule;

/**
 * @author John Lee
 * 
 */
public class StringRule extends Rule<String> {

	/**
	 * 
	 */
	private static final long serialVersionUID = 6304769554615381848L;

	/*
	 * (non-Javadoc)
	 */
	@Override
	public boolean result(RuleExecutor ruleExecutor) {
		if (null == operator) {
			return false;
		}
		String result = (String) ruleExecutor.execute(left);
		if (null == result) {
			return false;
		}
		switch (operator) {
		case EQ: {
			return result.equals(right);
		}
		case NE: {
			return !result.equals(right);
		}
		}
		return false;
	}

}
